Yakuts - the ethnicity that lives are in the most severe climate of the inhabited world.

So here we have the Russian ruble, nominal - 10. The year of issue of this coin is 2006. Mint: Saint-Petersburg, Russia. Total circulation – 10.000.000.

Sakha or Yakutiya, this republic in far northeastern Russia, in northeastern Siberia. The republic occupies the basins of the great rivers flowing to the Arctic Ocean  the Lena, Yana, Indigirka, and Kolyma — and includes the New Siberian Islands between the Laptev and East Siberian seas. Sakha was created an autonomous republic of the Soviet Union in 1922. Now it is the largest republic in Russia.

The Sakha (Yakut), a people who formed from the mixture of local tribes with Turkic groups that migrated from the south in the 6th–10th centuries AD, joined the Russian state in the first half of the 17th century. Yakutsk, the republic’s largest city, was founded in 1632. In 1638 the Yakutsk province was established and the area was opened to Russians, who settled in the towns along the middle Lena River. By the 19th century many of the nomadic Sakha had adopted a sedentary life. In the late 20th century the Sakha constituted only about a third of the republic’s population.

A mountainous area interspersed with broad plateaus and broken by river and coastal lowlands, Sakha extends from the Central Siberian Plateau on the west to the Kolyma Lowland on the east and from the Arctic coast on the north to the Stanovoy Mountains on the south.

The climate of Sakha, which is the most severe of the inhabited world, is the extreme of continental, with an average January temperature of −46 °F (−43.5 °C) and an average July temperature of 66 °F (19 °C). Only exceptionally dry air and calm weather conditions make the lower temperatures bearable.